Final answer:
The false statement is that the absence of misstatements in financial statements is considered convincing evidence that existing controls are effective.
Step-by-step explanation:
The false statement among the given options is B) The absence of misstatements in financial statements is considered convincing evidence that existing controls are effective. In reality, the absence of misstatements in financial statements is not sufficient evidence to conclude that controls are effective because it is possible that the control procedures are not detecting errors or fraud. Auditors need to perform substantive procedures to provide further assurance of the accuracy of financial statements and to mitigate the risk of undetected misstatements.